Partition junction-box.



PARTITION IUNCTION BOX.

APPLICATION FILED IULYI5, 1914.

, l l .,327 Patented July 18, 1916.

FTENT JAMES F. MGELROY, OF ALBANY, NEW YORK, ASSIGNOB, TO CONSOLIDATED CAR- HEATING COMPANY, A CORPORATEON OF WEST VRGXNIA.

PARTTION JUNCTl'ON-BOX.

Lierse?.

Specification of Letters atent Patented muy as, raie.

application inea :hay i5, 1914. serial No. carico.

To all whom t may concern:

Be it known that JAMES F. MCELROY, a citizen 'of the United States, residing at Albany, county of Albany, Stateot New York, have invented certain new and useful lmprovementsin Partition Junction-Boxes, the following being a full, clear, and exact disclosure of the one form ot my invention which l at present deem preferable.

For a detailed description of the present form of my invention, reference may be had to the following specication and to the accompanying drawings, which illustrate my invention, wherein- Figure l is a horizontal section of my device, looking down upon the switch lever; Fig. 2 is a plan of the switch-portion of the device; Fig. 3 is a side elevation of the internal parts with the casing in section; Figs. 2o 4 and 5 show the switch-lever and the bearing-base therefor detached.

My invention relates to a junction-box and,

in particular, one designed to be set in a partition wall, and serve as a combined junc- 35 tion-box and switch.

- Referring to the drawings, F represents the casing of my device. lt includes two portions, one on each side oi a `partitionwall E, to which it is secured by means of flanges f, 7@ projecting outwardly from the exterior ot" the casing at a point about midway between its two sides. The casing is ot a depth greater than the thickness of the partition wall.

rlhe portion of the box which is exposed on the right-hand side ot wall E, as it appears in Fig. 3, and projects therefrom, is the junction-portion thereof. lt is provided with a removable cover F1L and also with an opening in an extension at the bottom, for the entry of the line-wire tube G. rlhis extension is made as a part ofthe removable cover F1, so that the casing can be inserted in the partition from the left-hand side thereof without any more cutting of the partition than is required to give an opening fitting closely around the rectangular portion of the box. Then when it has been so inserted in the partition, and the tube 'G also placed in position, the removable cover F1 can be applied from the right-hand side of the partitionto not only close the box, but to also cover over and include the tube G, in the interior of the casing. When the E55 cover F1 is attached to the casing and to the wall E, by screws or other similar detacts, lever and bearingbase of the switch.

`Within the casing is fixed a plate of insula.-

tion D which, as shown in the drawing, divides the interior of the casing into two compartments. @n the junction-box side the said plate D carries the junction-terminals to which may be secu-red the wires entering the casing through the tube Gr in a manner well understood in the art. @n the switch side of the casing the said plate D carries a bearing-base of the form shown in detail in Fig. 5. Said base comprises a flat plateportion C secured against plate D, and a ring or ring-portion C1 projecting therefrom at right angles to the part C. opening of the ring-portion C1 is indicated by the letter c. The crest of the ring C1 is provided with two projecting lugs c1, 02 torming between them an open-ended slot, while a similar slot,- but not open-ended, is cut in the end ot dat plate-portion C directly below the slot between c1 and 02. At the opposite extremity ot the said flat portion C are two slight projections forming between them a notch a, and just in :trent of the notch a is a stud c3 for attaching a. spring, as will be hereinafter explained.

The movable switch-member is shown in detail in Fig. iand includes a shank A., to one end of which is secured the insulating knob A1. @n the opposite end of shank A is a disk B, extending at right angles to the shank A, and provided on its outer side with two lugs b, Z). rlhe shank A also carries a downward projection A2 adapted to enter and tit into the aforesaid notch a on the fiat base-piece YC. rlhese two parts, which may be made as castings, to-wit, the bearing-base and the movable member or lever, comprise the fundamental parts of my rlthe circular switch. rlhey are assembled, as shown in Figs. l, 2 and 3, by passing the knob A1 and shank A. through the ring C1, until the disk B bears against the outer face of the ring. A pin l is then passed downward through the slot between lugs c1, 02, into and through the lugs b, b, on disk B, and into the slot in the end of the flat base-piece C.

This pin is secured to lugs b, b by a small fasteningipin. Then a tension spring S is secured at one end to the stud c3 and at the other end to the aforesaid pin K at a point between the lugs l), b. The spring draws the disk B down to its normal flat bearing against the outer face of ring C1, thereby holding the switch-lever control, as shown in Fig. 2, and also drawing its lower end inward toward base plate C, Nso that the projection A2 of the lever will engage the notch a and be locked thereby in its said central position.'

To move the switch lever to either side, away from its central position shown in Fig. 2, it is necessary to first draw it slightly forward to bring the projection A2 out of notch a. In thismovement the lever fulcrums around the inner edge of disk B nearest to the base-plate C. The lever may' then be moved sidewise against either' one of the contact-springs appearing on either the lateral edges of the disk B. All of the lever movements will obviously be' resisted by` thevspring S, which tends to hold disk B flat against the outer face of ring (l1. Hence when the lever has been moved toione side or the other, to close the circuit b v engaging one of the contact springs on either side of it, the spring S will return the lever to its central position, as soon as it (the lever) is released, and will also lock it in that position by drawing projection A2 into notch a.

The construction thus described is extremely simple and cheap, considering the r,duties that it performs, and I have found it of value in situations, such as a railway car, where the motorman in his cab on one side of partition E desires to close momentarily either a car-door-opening circuit, or a cardoor-closing circuit as the case may be. The line-wire tube G will rise on the opposite side 'of partition E.

What I claim as new and desire to -secure by Letters Patent Yis: `i3

1. A partition junction' box comprising a section having means for engaging a partition wall and located to cause a portion thereof to project through said wall when engaged therewith, a removable cover attached to the portion to he projected through the wall, and provided with means to aid in securing said section in position, and means within said `-section for supporting terminal rconnections on the cover side of said wall and switch contacts on/the other side of the wall.

2. A partition Ijunction box comprising a section having means for engaging a partil tion wall and located to cause a portion thereof to project through said wall when engaged therewith, said section having a wide' opening in one end, a removable cover attached to the portion to be projected through the wall, and provided with means to aid in securing said section in position, and means within said section for supporting terminal connections on the cover side of said wall and switch contacts on the other side of the wall.

3. A partition junction box comprising a section having means for engaging a partition wall and located to cause a portion thereof to project through said wall when engaged therewith, a. removable cover attached to the portion to be projected through the wall, said cover having means for embracing a line wire tube, and means within said section for supporting terminal connections on the cover side of said wall and switch contacts on the other side of the wall.

4. A partition junction box comprising a section having means for engaging a partition wall and located to cause a portion thereof to project through said wall when engaged therewith, a removable cover attached to the portion to be -projected through the wall, said cover having an extension :for clamping a line wire tube against said Wall, and means withirrsaid section for supporting terminal /connections on the cover side of said wall and switch contacts on the other side of the wall.

5. A partition junction box comprising a section having means for engaging a partition wall and located to cause a portion thereof to project through said wall when engaged therewith, said section having a wide opening in one end, a removable cover attached to the portion 'to be projected through the wall, said cover having means for embracing a line wire tube, and means within said section for supporting the terminal connection on the cover side of said wall, and switch contacts on the other side of said wall. l

6. A partition junction box comprising a section having means for engaging a partition wall and located to cause a portion thereof to project through said wall when Vengaged therewith, said section having a wide opening in one end, a removable cover vattached to the portion to be projected through the wall, said `cover having means for embracing a line wire tube.

In witness whereof I have hereunto set my hand, before two subscribing witnesses, this 6th day of July, 1914.

JAMES F. MoELROY. `Witnesses: Y

HERBERT A. CALKINS,

CHAs. H. MILLER. 

